Azure Cosmos DB SDK for Rust Client library for Azure Cosmos DB NoSQL API — globally distributed, multi-model database. Installation Environment Variables Authentication Client Hierarchy | Client | Purpose | Get From | |--------|---------|----------| | | Account-level operations | Direct instantiation | | | Database operations | | | | Container/item operations | | Core Workflow Get Database and Container Clients Create Item Read Item Replace Item Patch Item Delete Item Key Auth (Optional) Enable key-based authentication with feature flag: Best Practices 1. Always specify partition key — requi…